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      07-16-2010, 10:37 PM   #48
chromisdesigns
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Drives: 2008 BMW 335i sedan
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Quote:
Originally Posted by pruettfan View Post
About 20,000 miles ago I switched from the factory RFT's to conventional Vredestein tires. I noticed immediate differences in ride quality, noise and believe it or not fuel mileage. I attribute the later to reduced unsprung weight. I have had not issues whatsoever. I feel that all I lost was a slight bit of the quick turn in that the RFT's bring due to the sidewall stiffness. Having said that the overall performance is improved and I have no regrets at all. In fact if I bought a 2011 I would not wait till the RFT's wore out before I would dump them for a good set of conventional tires.
Better economy is probably due to decrease rolling resistance, rather than weight.
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